Hirota method for the nonlinear Schrodinger equation with an arbitrary linear time-dependent potential

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	Hirota method for the nonlinear Schrodinger equation with an arbitrary linear time-dependent potential
	Li, ZD ; Li, QY ; Hu, XH ; Zheng, ZX ; Sun, YB
刊名	ANNALS OF PHYSICS
	2007
卷号	322 期号:11 页码:2545
ISSN号	0003-4916
中文摘要	Appling the in situ powder-in-tube method, 11 meter long Fe-sheath MgB2 superconducting wires with outer diameter 1.75 mul were fabricated, using 99.5% Mg powder and 99.9% amorphous boron powder doped with 30 nm SiC powder as starting materials. This procedure begins with ball-milling of the mixture powder immersed in acetone solution in a jar and subsequently drying in vacuum. Then the iron tube loaded with the powder mixture was grooved, swaged and drawn to the final wire size. The transition temperature, microstructure, lattice constant and chemical element distribution were evaluated by SQUID, XRD, SEM and EDS, respectively. It was found that T-c(onset) and Delta T-c are 35. 1 K and 5.3 K, respectively. All samples containing a small amount of MgO, exhibit rather uniform microstructure. Besides, by nano-SiC doping, the MgB2 lattice distortion due to substitution of boron by carbon, results in forming effective flux pining centers, which significantly improves the critical current, and the C element was uniformly distributed in the MgB2 matrix. The standard four-probe measurement shows that all the 10 sample points, which were evenly cut at 1 meter intervals of the 11 meter length wire, have good superconducting homogeneity with critical current values fluctuating within 10% under the applied fields vavying from 10 to 18 Tesla, and all J(c) values are above 10(4) A/Cm-2, with the highest value reaching 1.2 x 10(4) A/cm(2) at 4.2 K and 10T.
收录类别	SCI
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/39471]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Li, ZD,Li, QY,Hu, XH,et al. Hirota method for the nonlinear Schrodinger equation with an arbitrary linear time-dependent potential[J]. ANNALS OF PHYSICS,2007,322(11):2545.
APA	Li, ZD,Li, QY,Hu, XH,Zheng, ZX,&Sun, YB.(2007).Hirota method for the nonlinear Schrodinger equation with an arbitrary linear time-dependent potential.ANNALS OF PHYSICS,322(11),2545.
MLA	Li, ZD,et al."Hirota method for the nonlinear Schrodinger equation with an arbitrary linear time-dependent potential".ANNALS OF PHYSICS 322.11(2007):2545.